The barfing thing is it shedding its skin. That is just how they look when they do so. If Marshy is doing it more often than not, it may be a bad sign. That is exactly what my frog started to do before it got really bad. The glue like stuff is the skin it didn't consume. the red color underneath the frogs belly is another sign of what could become red leg. Actually, from my reading red leg may not be a disease at all. Frog's naturally have bacteria in them that could possibly take over at any time. Anything could set this off, but I think stress is the number one reason. This is how I was able to cure my frog. Buy a separate tank (may be a small tank), put humidifying moss on the bottom, give him/her a place to hide, keep the humidity around 70-75, give the frog 12 hours of UV's a day and total darkness at night, and change his water bowl daily. allow the frogs own immune system to take over. One thing that is also vital is to leave the frog be by not handling him whatsoever, staying out of the room, and keeping noise levels to a bare minimum. Red leg is less likely to be curable in the later stages. In the later stages red leg seems to look like red veins in the legs. These are blood vessels that have popped. Hope this helps.